importing vg's on RHEL

Hi,does anyone know how can I import a vg, on linux LVM 2, when there's already exist a vg with the name of the vg I wish to import? on hpux it was easy - I had to use map file or device names - and I would set the vg name when importing .. on linux it's impossible - I can't rename a vg when importing, and if there is already a vg with the name of the vg I wish to import - the import fails...

Re: importing vg's on RHEL

The RHEL4U6 version of "man vgrename" says that you should be able to rename the conflicting volume group by UUID with "vgrename UUID newname". But it also notes that the system may not boot at all if the volume group name of the root filesystem is duplicated.